Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a presença no estádio do Texas?
 ###Tabelas: CREATE TABLE schedule (schedule_id AUTO_INCREMENT PRIMARY KEY, Week INT, Date VARCHAR, Opponent VARCHAR, Result VARCHAR, Venue VARCHAR, Attendance INT) CREATE TABLE 2008_ipo_general_election_results (2008_ipo_general_election_results_id AUTO_INCREMENT PRIMARY KEY, Race VARCHAR, Candidate VARCHAR, Party VARCHAR, Notes VARCHAR, Votes INT) CREATE TABLE 2013–14_season (2013–14_season_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Position in 2012–13 VARCHAR, First season in top division VARCHAR, Number of seasons in top division INT, First season of current spell in top division VARCHAR, Top division titles INT, Last top division title VARCHAR) CREATE TABLE population_movement_of_jews_from_former_ussr_in_israel (population_movement_of_jews_from_former_ussr_in_israel_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Births (000s) INT, Deaths INT, Natural Growth INT, Total Fertility Rate VARCHAR) CREATE TABLE supersport_race_classification (supersport_race_classification_id AUTO_INCREMENT PRIMARY KEY, Rider VARCHAR, Bike VARCHAR, Laps INT, Time VARCHAR, Grid INT)  
SELECT SUM Attendance FROM schedule WHERE Venue = texas stadium